The Challenger Disaster
Published on Nov 19, 2015
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PRESENTATION OUTLINE
Challenger Disaster
Remember Jan. 22, 1986
Challenger
Flew from April 4, 1983 - Jan. 22 1986
The Challenger parts were named STA-099 (Structural Test Article -099) which included a new, lightweight frame. NASA tried to computer test the spaceship, but the technology at the time wasn't good enough to tell the effects of the frame. Instead, they tested it manually for a year, exposing it gradually to heat and vibrations.
Project Accomplishments
- June 1983 - 1st female - Sally Ride
- June 1983 - 1st African American - Guion Bluford
- 1984 - 1st sisters - Ride and Catherine Sullivan
- 1984 - 1st Canadian - Marc Garneau
Sally Ride -
http://upload.wikimedia.org/wikipedia/commons/a/a4/Ride-s.jpg
Guion Bluford-
http://myhero.com/images/guest/g245417/hero77525/g245417_u90118_Insuit.jpg
Catherine Sullivan-
http://upload.wikimedia.org/wikipedia/commons/thumb/5/56/Kathryn_D._Sulliva...
Marc Garneau-
http://thumbnails.cbc.ca/maven_legacy/thumbnails/marcgarneau_20_hr_en.jpg
http://upload.wikimedia.org/wikipedia/commons/a/a4/Ride-s.jpg
Guion Bluford-
http://myhero.com/images/guest/g245417/hero77525/g245417_u90118_Insuit.jpg
Catherine Sullivan-
http://upload.wikimedia.org/wikipedia/commons/thumb/5/56/Kathryn_D._Sulliva...
Marc Garneau-
http://thumbnails.cbc.ca/maven_legacy/thumbnails/marcgarneau_20_hr_en.jpg
Problems
- Launched from FL- delayed six days - weather
- Jan 28 - cold
- O rings contracted
- Fuel tank collapsed causing a fire
- ****Was a fireball, NOT an explosion
O-rings
http://ecx.images-amazon.com/images/I/61xgh9zbKlL.jpg
Also the joint to the motor malfunctioned, causing the seals to break, which made the gasses leak out. Not only did the O-rings contract, the O-rings were less flexible because of the cold. Also, they don't seal as well during the cold.
http://ecx.images-amazon.com/images/I/61xgh9zbKlL.jpg
Also the joint to the motor malfunctioned, causing the seals to break, which made the gasses leak out. Not only did the O-rings contract, the O-rings were less flexible because of the cold. Also, they don't seal as well during the cold.
Crew
- 7 people aboard
- Including Gregory Jarvis, Judith A. Resnik, Francis R. (Dick) Scobee
- Crista McAuliffe - 1st school teacher
- 2007 - Barbara Morgan is a teacher
Crew-
Greogry Jarvis- payload specialist
Astronauts-
Judith Resnik, Ronald McNair, Crista McAuliffe, and Ellison Onizuka - mission specialists
Francis Scobee- commander
Mike Smith- pilot
In 2007, Barbara Morgan is another teacher in space (on the Endeavor mission), specifically for the remembrance of Crista McAuliffe.
Greogry Jarvis- payload specialist
Astronauts-
Judith Resnik, Ronald McNair, Crista McAuliffe, and Ellison Onizuka - mission specialists
Francis Scobee- commander
Mike Smith- pilot
In 2007, Barbara Morgan is another teacher in space (on the Endeavor mission), specifically for the remembrance of Crista McAuliffe.
How it ended
- Thousands watching from the ground
- Erupted into flames
- Fell into ocean at 200 G's
- ***Astronauts didn't die until 3 mins after burn
https://www.youtube.com/watch?v=j4JOjcDFtBE
All communicative feed with cameras were lost .678 seconds into the flight because of the intense heat and smoke. It started out as one puff of smoke, followed by eight more puffs of smoke between .836 and 2.5 seconds into the flight. The smoke was the direct result of O-rings and the motor joint burning up by the hot gasses. As the operators increased the speed, a flame flickered alive and soon the whole ship was burning, engulfed in fire and smoke.
All communicative feed with cameras were lost .678 seconds into the flight because of the intense heat and smoke. It started out as one puff of smoke, followed by eight more puffs of smoke between .836 and 2.5 seconds into the flight. The smoke was the direct result of O-rings and the motor joint burning up by the hot gasses. As the operators increased the speed, a flame flickered alive and soon the whole ship was burning, engulfed in fire and smoke.
200 G's Compared to Roller Coasters
Other Coasters
Hollywood Rip-Ride-Rockit - 4.5Gs
Montu - 3.85 Gs
Kumba - 3.85 Gs
Also, the highest amount of pressure the rocket endured was 720 pounds per square foot. That's about the weight of a motorcyle on every square foot of the ship!
Hollywood Rip-Ride-Rockit - 4.5Gs
Montu - 3.85 Gs
Kumba - 3.85 Gs
Also, the highest amount of pressure the rocket endured was 720 pounds per square foot. That's about the weight of a motorcyle on every square foot of the ship!
Aftermath
Nasa stopped launching for two more years to fix
Nasa realized that they had to choose better conditions to lauch the shuttle at. The temperature will change the pressure on the ship, which may have also led to the seals of the motor breaking. There is also a posssibility that water froze inside the joints, inhibiting proper performance. Also, NASA realized that the materials, dimensions, and just the overuse of the ship may have been at fault.
Prevention
- Engineers were silent although saw something wrong
- Manufacturer "Morton Thickol" ignored warnings
- Need better communication - too many barriers
- Better communication could've saved lives
NASA redesigned the faulty joint and tested it vigorously. With new technology, NASA could test things more effectively and require less money. Also, NASA got rid of the putty that held the seal together, which may have been another factor in this memoriable destruction.
Works Cited
Works Cited
Dave. "Top 10 Roller Coasters in Florida." Adventure Travel Blog for Couples The Planet D RSS 092. Adventure Travel, 21 May 2011. Web. 27 Apr. 2014.
Dunbar, Brian. "Remembering the Challenger Crew." NASA. NASA, 28 Aug. 2013. Web. 28 Apr. 2014.
Gebhardt, Chris. "1983-1986: The Missions and History of Space Shuttle Challenger."NASASpaceFlight.com. NASASpaceflight, 2005. Web. 28 Apr. 2014.
History.com Staff. "Challenger Disaster." History.com. A&E Television Networks, 2010. Web. 14 Apr. 2014.
Howell, Elizabeth. "Challenger: Shuttle Disaster That Changed NASA." Space.com. Space.com, 16 Oct. 2012. Web. 13 Apr. 2014.
NASA. "CHALLENGER EXPLOSION." CHALLENGER EXPLOSION. NASA, 1986. Web. 28 Apr. 2014.
Oberg, James. "7 Myths about the Challenger Shuttle Disaster." Msnbc.com. NBC News, 25 Jan. 2011. Web. 14 Apr. 2014.
Dave. "Top 10 Roller Coasters in Florida." Adventure Travel Blog for Couples The Planet D RSS 092. Adventure Travel, 21 May 2011. Web. 27 Apr. 2014.
Dunbar, Brian. "Remembering the Challenger Crew." NASA. NASA, 28 Aug. 2013. Web. 28 Apr. 2014.
Gebhardt, Chris. "1983-1986: The Missions and History of Space Shuttle Challenger."NASASpaceFlight.com. NASASpaceflight, 2005. Web. 28 Apr. 2014.
History.com Staff. "Challenger Disaster." History.com. A&E Television Networks, 2010. Web. 14 Apr. 2014.
Howell, Elizabeth. "Challenger: Shuttle Disaster That Changed NASA." Space.com. Space.com, 16 Oct. 2012. Web. 13 Apr. 2014.
NASA. "CHALLENGER EXPLOSION." CHALLENGER EXPLOSION. NASA, 1986. Web. 28 Apr. 2014.
Oberg, James. "7 Myths about the Challenger Shuttle Disaster." Msnbc.com. NBC News, 25 Jan. 2011. Web. 14 Apr. 2014.
